Nonlinear stability of elastic elliptical cylindrical shells under uniform bending
Nonlinear stability of elastic elliptical cylindrical shells under uniform bending
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均匀弯曲下弹性椭圆圆柱壳的非线性稳定性
DOI:
10.1016/j.ijmecsci.2017.05.022
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发表时间:
2017
影响因子:
7.3
通讯作者:
Xu Z
中科院分区:
文献类型:
--
作者:
Xu Z
Cylindrical metal shells with elliptical cross-sections are gaining increasing popularity as hollow sections due to their unique aesthetic appearance and different geometric properties about their two principal axes, with one axis exhibiting properties that are significantly more favourable than the other under flexure. However, in comparison with other hollow geometries, elliptical cross-sections have only recently begun receiving significant research attention. This is partly because even simple analytical treatments inevitably encounter cumbersome elliptical integrals that have no closed-form solutions, a problem now attenuated by powerful modern computing capabilities.A recent computational study investigated the nonlinear buckling resistance of perfect elastic circular cylindrical shells under uniform bending, establishing four distinct length-dependent domains of behaviour and characterising these in compact form using specially chosen dimensionless parameters. The present study extends this work to cylinders with elliptical cross-sections under bending about both principal axes. The same qualitative domains of length-dependent nonlinear elastic behaviour are found as for circular cylinders, but requiring a different algebraic characterisation that takes account of the varying elliptical radii. On the basis of computational results, a reference equation for the moment governing the ‘Brazier’ ovalisation cross-sectional failure mode for long elliptical thin-walled cylinders is deduced and presented for publication for the first time.
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作者:
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通讯作者:
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DOI:
--
发表时间:
2015
期刊:
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DOI:
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发表时间:
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期刊:
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DOI:
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发表时间:
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期刊:
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER
影响因子:
--
作者:
Brazier, LG
通讯作者:
Brazier, LG
影响因子:
6.4
作者:
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